\begin{tabular}{l*{12}{D{.}{.}{-1}}}
                &\multicolumn{3}{c}{Ageism Explicit}                     &\multicolumn{3}{c}{Ageism Thermometer}                  &\multicolumn{3}{c}{Ageism Index}                        &\multicolumn{3}{c}{Ageism IAT Score}                    \\\cmidrule(lr){2-4}\cmidrule(lr){5-7}\cmidrule(lr){8-10}\cmidrule(lr){11-13}
                &\multicolumn{1}{c}{(1)}         &\multicolumn{1}{c}{(2)}         &\multicolumn{1}{c}{(3)}         &\multicolumn{1}{c}{(4)}         &\multicolumn{1}{c}{(5)}         &\multicolumn{1}{c}{(6)}         &\multicolumn{1}{c}{(7)}         &\multicolumn{1}{c}{(8)}         &\multicolumn{1}{c}{(9)}         &\multicolumn{1}{c}{(10)}         &\multicolumn{1}{c}{(11)}         &\multicolumn{1}{c}{(12)}         \\
\midrule
Generational Grievances Index&    0.261\sym{***}&                  &    0.221\sym{***}&    0.181\sym{***}&                  &    0.152\sym{***}&    0.265\sym{***}&                  &    0.160\sym{***}&    0.011         &                  &    0.019         \\
                &  (0.035)         &                  &  (0.036)         &  (0.033)         &                  &  (0.033)         &  (0.033)         &                  &  (0.031)         &  (0.018)         &                  &  (0.018)         \\
\addlinespace
Personal Grievances Index&                  &    0.235\sym{***}&    0.183\sym{***}&                  &    0.168\sym{***}&    0.134\sym{***}&                  &    0.519\sym{***}&    0.482\sym{***}&                  &   -0.033         &   -0.037\sym{*}  \\
                &                  &  (0.038)         &  (0.039)         &                  &  (0.037)         &  (0.037)         &                  &  (0.034)         &  (0.034)         &                  &  (0.020)         &  (0.021)         \\
\midrule
Observations    &     1830         &     1830         &     1830         &     1850         &     1850         &     1850         &     1853         &     1853         &     1853         &     1123         &     1114         &     1114         \\
Adjusted \(R^{2}\)&    0.030         &    0.023         &    0.043         &    0.018         &    0.015         &    0.027         &    0.036         &    0.134         &    0.146         &   -0.001         &    0.002         &    0.002         \\
\end{tabular}
